M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 25, 1987

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 25, 1987. Epicenter 415 km N of Capitol Hill, depth 33 km, 14:53 Local (1987-04-25 04:53 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (415 km N, Northern Mariana Islands) — 18.94, 145.496

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